Dil

ISqlExpressionFactory.IsNull(SqlExpression) Yöntem

Tanım

Ad Alanı:
Microsoft.EntityFrameworkCore.Query
Bütünleştirilmiş Kod:
Microsoft.EntityFrameworkCore.Relational.dll
Paket:
Microsoft.EntityFrameworkCore.Relational v10.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v11.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Paket:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v8.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Kaynak:
ISqlExpressionFactory.cs
Kaynak:
ISqlExpressionFactory.cs
Kaynak:
ISqlExpressionFactory.cs
Kaynak:
ISqlExpressionFactory.cs
Kaynak:
ISqlExpressionFactory.cs

Null'a eşitliği temsil eden yeni SqlExpression bir oluşturur.

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression IsNull(Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand);
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression IsNull(Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand);
abstract member IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
abstract member IsNull : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression
Public Function IsNull (operand As SqlExpression) As SqlExpression
Public Function IsNull (operand As SqlExpression) As SqlUnaryExpression

Parametreler

operand
SqlExpression

Null ile karşılaştırmak için A SqlExpression .

Döndürülenler

SqlExpression
SqlUnaryExpression

SQL ağacında IS NULL yapısını temsil eden bir ifade.

Şunlara uygulanır